OneColor Go
In this game defeating each character at a game of go is a level
You can also play onecolor go This will allow you to just have a 19 by 19 board go with either an only white or an only black go game
This makes it tricky You will have to remeber where you have placed the stones
To get onecolor go you must pass level 10
Toya Koya
You can defeat Toya Koya Sensei in level 10 of the game
To get past level 10 you must get at least 3700 points
Give Koya Sensei at least a 3stone handicap to win easily
After defeating level 10 you will have an option to play onecolor go